Fitness
Choosing post-workout snack? Decide early, study says
A post-exercise snack can threaten to undo the gains (or losses) of a workout. But the decision itself may depend on when you make it.
You’ve just exercised for an hour, tracking the burned calories with a sense of satisfaction. Then comes a choice: munch on an apple or indulge in the chocolatey goodness of a brownie?
A post-exercise snack can threaten to undo the gains (or losses) of a workout. But the decision itself may depend on when you make it, according to a new study from the University of Nebraska-Lincoln.
The takeaway? Avoiding delay can keep temptation at bay.
Nebraska’s Karsten Koehler, Christopher Gustafson and their colleagues conducted an experiment that asked two groups of participants to go about their normal workout routines while wearing motion-tracking accelerometers, supposedly to calibrate them.
Before exercising, members of one group decided whether they wanted an apple, brownie or no snack following the exercise session – an offer framed as a reward for calibrating the accelerometers. Members of the other group were presented with the same choice after they had already exercised.
Roughly 74 percent of participants who were asked prior to the workout session chose an apple, compared with 55 percent of those asked afterward – making the latter about one-third less likely to favor the fruit. And whereas just 14 percent of the pre-exercise group selected the brownie, about 20 percent of the post-workout group decided to indulge.
The findings suggest that simply committing in advance to a post-exercise snack may increase the odds of eating more nutritiously, the researchers said.
“We found that there was very little research on this very tangible thing that I think everyone can relate to,” said Koehler, assistant professor in the Department of Nutrition and Health Sciences. “If your goal is to lose weight, then I would say our findings support that you’re better off making the choice … not when you’re hungry after your workout, but instead before you go to the gym.”
That recommendation, and the data undergirding it, echoes broader research on the dynamics between timing and food choice. Prior studies have consistently shown that people are more willing to indulge when making immediate dietary decisions than when thinking ahead, said Gustafson, assistant professor in the Department of Agricultural Economics.
“Our study conformed very closely to the ideas in behavioral economics about this present-biased preference (for unhealthier options),” Gustafson said. “Using solely that model, I would’ve predicted that people would be more likely to choose the healthy snack when choosing before they exercise.”
The study’s design also put two other theoretical models to the test. One, known as compensatory eating, suggests that people consume more calorie-dense food in the aftermath of exercise to make up for calories expended during a workout. Yet the other model, exercise-induced anorexia, proposes that exercise can suppress appetite-related hormones and consequently lead people to eat less.
“There have been a lot of lab studies that have looked at appetite and hunger,” Koehler said. “Most of these studies have found that right after exercise, you seem to be less hungry. I’ve always looked at these studies and wondered: Does it have such a strong impact that you can use this window after you exercise to say, ‘Because I’m not hungry, I’m going to make a really good choice about what I eat’? But knowing myself and many other exercisers, there’s also the notion that after you exercise, you want to reward yourself.”
Despite the seeming contradiction, the team found indications of both. Though modest, the 6-percent increase in brownie choice between the pre- and post-exercise groups supported the notion of compensatory eating. And the evidence for exercise-induced anorexia was clear: The 12-percent fraction that declined a snack in the pre-exercise condition rose to 25 percent in the post-exercise group.
Plenty of questions remain, the researchers said. Did the rise in brownie choice stem more from the immediacy of the decision-making or the sway of compensatory eating? What differentiates those who exhibit compensatory eating vs. exercise-induced anorexia? Would a larger menu of options – one that better approximates a real scenario – alter the outcomes?
The answers may lie in more detailed experiments that Koehler, Gustafson and their colleagues are already busy conducting.
“We’re from two different academic backgrounds,” Gustafson said, “and I think both of our fields have a perspective on the questions that we’re looking at.”
The team reported its findings in the journal Nutrients. Koehler and Gustafson authored the study with Nebraska’s Ajai Ammachathram, assistant professor in the Department of Nutrition and Health Sciences; Nigina Rakhmatullaeva, graduate student in agricultural economics; Safiya Beckford, graduate student in nutrition and exercise physiology; and Alexander Cristobal, senior in nutritional science and dietetics.
Fitness
Treatment options to help overcome knee pain for sports enthusiasts
“Sports-related pain should be evaluated quickly, especially when it’s difficult to put weight on the knee, swelling occurs or there is restricted range of motion,” said Dr. Alexander Meininger, orthopedic surgeon and MACI consultant.
Millions of people experience chronic pain, with knee pain among the most common. Athletes and active adults know the impact activities like running and skiing can have on their knees, but when chronic knee pain makes it difficult to do those activities, or even day-to-day tasks like walking up the stairs, people may often face challenges.
According to the journal “Cartilage,” unlike other tissues, cartilage does not repair itself and, without proper treatment, can worsen over time and become more difficult to treat. However, options like FDA-approved knee cartilage repair surgery MACI (autologous cultured chondrocytes on porcine collagen membrane) uses a patient’s cells to help repair cartilage defects and may help alleviate knee pain.
“Sports-related pain should be evaluated quickly, especially when it’s difficult to put weight on the knee, swelling occurs or there is restricted range of motion,” said Dr. Alexander Meininger, orthopedic surgeon and MACI consultant.
Justin Keys, a former patient of Meininger and avid skier, knows that the long-term outcomes of knee cartilage surgery can be worth the short-term sacrifices. After several injuries, including an ACL injury, Keys struggled with most activities except walking on flat, paved surfaces. After consulting with Meininger, Keys chose knee cartilage repair to help get back to his active lifestyle.
Keys considered whether to manage the injury as-is or choose MACI and undergo rehabilitation to potentially get back to his favorite activities in the future. He knew he could no longer use short-term relief methods and had to address his pain with a treatment to help provide lasting relief.
For athletes like Keys who want to fix knee pain, it’s important to consider these steps:
Discuss Options with Your Doctor
Patients should talk to their doctors and undergo an MRI to help assess the internal structures of the knee. Meininger recommends patients and their doctors discuss options for long-term knee restoration health, preserving function for future decades and recognizing the short-term sacrifice.
Set Yourself Up for Success
Experts like Meininger suggest patients take steps ahead of surgery to help their recovery.
“The important thing is to be as fit as possible and use the preseason months to undergo surgery and rehab,” Meininger said.
Patients can take steps to prep their home for recovery, which may include:
- Bringing necessities down from hard-to-reach shelves
- Moving furniture to ensure clear pathways
- Installing shower safety handles to minimize potential falls
The Road to Rehab and Recovery
Rehabilitation takes time and everyone’s experience is unique. It can be as much of a mental challenge as it is physical. Committing to a physical therapy regime, staying hydrated and eating well are important aspects to support recovery. Patients should talk to their doctors with questions and before starting any exercises.
IMPORTANT SAFETY INFORMATION
Do not use if you are allergic to antibiotics such as gentamicin or materials from cow or pig; have severe osteoarthritis of the knee, other severe inflammatory conditions, infections or inflammation in the bone joint and other surrounding tissue or blood clotting conditions; had knee surgery in the past 6 months, not including surgery for obtaining a cartilage biopsy or a surgical procedure to prepare your knee for a MACI implant; or cannot follow a rehabilitation program post-surgery.
Fitness
6 Exercise safety tips
Now, as social restrictions ease, you may find yourself stepping up your workouts, whether you’re training for an event or working to improve your game in a recreational league.
In the wake of the COVID-19 pandemic, many Americans are more aware of their health and wellness. Now, as social restrictions ease, you may find yourself stepping up your workouts, whether you’re training for an event or working to improve your game in a recreational league.
Sprains, strains and injuries can happen to even the most seasoned athletes. When you’re testing your limits, even a minor injury can alter your performance. Consider products and supports like these from the CURAD Performance Series product line, available at Walmart and Amazon, to help you get back in the game quickly and safely.
Find more resources to support your fitness journey at CURAD.com.
Keep Dirt and Germs Away
The more active you are, the harder it can be to find a bandage that stays with you all day or all game long.
Spray Away Sore Spots
Controlling mild pain can help keep you at the top of your game, and a topical analgesic works fast to heal common pain brought on by fitness and exercise, such as pain in knees, feet, shoulders and backs.
Put Pain in the Past
When recovery becomes the name of the game and pain relief is needed after daily workouts or bodily injuries. Cold packs work to heal bruises, reduce swelling and relieve headaches and general pain points while microwavable heat packs provide satisfying heat therapy to address sore and stiff joints, muscle cramps and tension.
Reduce Impact of Knee Strain
Weak, injured or arthritic knees can come from many sources, including tendonitis and a wide range of conditions that result in strain or overuse. An adjustable band can provide support for on-field sports and during workouts or everyday activities.
Manage Pain and Relieve Pressure
If you participate in endurance and strength exercises or certain sports, you may ask a lot of your joints. Kinesiology tape can be configured a multitude of ways to help reduce pain and improve blood circulation, as well as relieve tension and pressure.
Control Back Strain
When your back is strained, your body and performance can suffer. A mild or moderate sprain can benefit from strong support and compression.
Fitness
Exercise can provide relief for dry, itchy eyes
A significant increase in tear secretion and tear film stability after participating in aerobic exercise can be another remedy for relieving dry, itchy eyes.
A team led by researchers from the University of Waterloo discovered that a significant increase in tear secretion and tear film stability after participating in aerobic exercise can be another remedy for relieving dry, itchy eyes.
Every time we blink, our eyes are covered in tear film—an essential protective coating necessary for maintaining healthy ocular function. Healthy tear film comprises three layers–oil, water, and mucin–that work together to hydrate the ocular surface and protect against infection-causing irritants like dust or dirt.
When any part of the tear film becomes unstable, the ocular surface can develop dry spots, causing eye symptoms like itchiness or stinging and burning sensations.
“With so much of our activity tied to screen usage, dry eye symptoms are becoming increasingly common,” said Heinz Otchere, a PhD candidate in vision science at Waterloo. “Instead of having to use eye drops or other alternative treatments, our study aimed to determine if remaining physically active can be an effective preventative measure against dryness.”
Fifty-two participants were divided into two groups—athlete and non-athlete—to participate in an exercise session. Participants in the athlete group exercised at least five times per week, while non-athlete participants exercised no more than once per week. Researchers, which included experts from the University of Cape Coast in Ghana, performed visual examinations before and five minutes after each exercise session, where tear secretion and tear break-up time were assessed.
While participants in the athlete group showed the largest increase, Otchere says all participants experienced a meaningful boost in tear quantity and tear film stability after the exercise session.
“It can be challenging for people to regularly exercise when the demand is there to work increasingly longer hours in front of screens,” Otchere said. “However, our findings show physical activity can be really important for not just our overall well-being, but for our ocular health too.”
The study, Differential effect of maximal incremental treadmill exercise on tear secretion and tear film stability in athletes and non-athletes, was co-authored by Otchere, the University of Cape Coast’s Samuel Abokyi, Sekyere Nyamaah, and Michael Ntodie, and Ghana’s Our Lady of Grace Hospital’s Yaw Osei Akoto. It was recently published in the Experimental Eye Research journal.
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